Have to open Macbook lid after sleep to display on Thunderbolt

Discussion in 'MacBook Pro' started by Pjrufus, Jul 10, 2015.

  1. Pjrufus macrumors 6502

    Sep 20, 2014
    This is a new issue, started about a week ago and it's making me crazy. Macbook Pro connected to a Thunderbolt Display. Nothing has been updated since this started. Before, when in sleep mode, I just clicked on the mouse button (trackball) and the desktop would be on the display. Now, after sleep, the display lights but is blank, and I have to open and close the MB lid for the desktop to appear.

    If anyone has any ideas on this I would be grateful.
  2. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
  3. Pjrufus thread starter macrumors 6502

    Sep 20, 2014
    Thank you. Had no idea what that was, looked it up. I'll report back after trying it.
  4. Pjrufus thread starter macrumors 6502

    Sep 20, 2014
    Sorry to take so long to report back. Finally had time to look into this. Decided to try updating everything that needed updating and restarting, before trying the SMC reset. It was a few days ago, and everything's been fine since. Didn't have to reset SMC. Thank you again for the help.

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